中文摘要：

以苏州市某小区为例,采用SWMM模拟城市化后并采取LID措施（下凹式绿地、多孔路面等）时不同状况下的水文过程,评估不同LID措施的雨洪控制利用效果.结果表明,与现状模式情景相比,对于设计暴雨重现期为5a和10a,采用多孔路面措施,洪峰削减率分别为60%、56.5%,平均径流系数分别减少27.2%、20.9%;采用下凹式绿地措施,峰现时刻分别推迟7、8min;上述两种措施组合时,洪峰削减率分别为71.1%、64.5%,峰现时刻分别推迟11、9min,平均径流系数分别减少37.5%、28%.

英文摘要：

A residential district in city of Suzhou was taken as an example,the simulation of its hydrologic process is performed with SWMM after that it is citified and joins the measure of low impact development（LID）（sunken lawn and porous pavement）,and the utilization result of the storm-water control is assessed for different measures of LID.The results show that compared with present mode of storm-water control,when the storm return period is designed as 5aor 10 aand porous pavement measure is adopted,the flood peak reduction rates will be 60%and 56.5%,respectively,and the average runoff coefficient will reduce by 27.2% and 20.9%,respectively.When the sunken lawn measure is taken,the peak time will have a delay of 7mins and 8mins,respectively.And when these two measures are combined together,the flood peak reduction rates will become 71.1% and 64.5%,respectively,and the peak time will be postponed for 11 mins and 9mins,respectively,and the average runoff coefficient will reduce by 37.5% and28%,separately.